AMD Radeon RX Vega 64 and 56 Reviews [*UPDATED* Aug 28]

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psolord

Platinum Member
Sep 16, 2009
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yes, it was a very strange comment.

Also, I have no experience with this, but I've read around here several times and it seems the consensus is that 4K more or less eliminates the need for AA, right? You're basically absorbing a massive performance hit for something like 1% or less in visual improvement?

I wouldn't know, since I am too poor for anything close to 4K, monitor and GPU alike. The demand seemed a bit too high but I am not judging.

Living through the whole video game history since the Atari 2600, made me easily satisfied I guess. 1080P + SMAA is good enough for me.

On the other hand, I think I owe my dad an apology when we fight over me wasting a little water. I think I can see his point of view, since he grew up inside the WWII. SOrry Dad! (ssshhh don't tell him I said that )
 
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Mr Evil

Senior member
Jul 24, 2015
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...it seems the consensus is that 4K more or less eliminates the need for AA, right? You're basically absorbing a massive performance hit for something like 1% or less in visual improvement?
High pixel density reduces the need for AA. 4k gives you that at normal monitor sizes, but once you get up to 40" or more, the pixels are just as big as smaller low-res monitors, so the need for AA comes back.
 

Rifter

Lifer
Oct 9, 1999
11,522
751
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yes, it was a very strange comment.

Also, I have no experience with this, but I've read around here several times and it seems the consensus is that 4K more or less eliminates the need for AA, right? You're basically absorbing a massive performance hit for something like 1% or less in visual improvement?

Not true at all, well maybe for a 25-30" or less screen but if you get into the 30" and especially obvious on 40"+ then the pixels are still large, and very much benefit from AA.
 
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Elixer

Lifer
May 7, 2002
10,376
762
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Hmm... this could be a big issue.


What is worse is, the height isn't flush, so, the heatsink would be stuck on crooked, and might lead to cracking.



https://tweakers.net/nieuws/128409/...e-hoogte-en-afwerkkwaliteit-aan-partners.html
The differences were revealed by AMD stopping in the packaging of the reviewsamples that delivered it to techmedia as an additional Vega chip chip complete with hbm2 memory on interposer. The Vega chips are not simply stuck on a substrate, but are mounted on an interposer that allows a quick connection to the hbm2 memory on that same interposer. The interposer then sits on a substrate that is soldered on the PCB of the video card. That chip package we have on the card along with the review picture put. Mr Hardware.info , who has shared our property since the acquisition of the Press Group, also received such a package, but with another loose chip as a surprise.
 

IntelUser2000

Elite Member
Oct 14, 2003
8,686
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True, And good thing intel iGPU also sucks in terms of efficiency (performance/area, performance/watt). Also leaks indicate 800mhz GPU clocks for RR and low clocks, low voltage Vega might actually be very efficient.

For big Vega with HBM2 they had to meet performance targets to price it accordingly. So in typical AMD fashion the cards run miles beyond optimal efficiency. undervolt and underclock might actually make them into good mining cards...

They are actually quite efficient for GT2 parts. It's the high end Iris Pro parts(like Pro 580) that sucks.

Those cards sell like pancakes no matter what lol

people are too afraid not to get one

that beta driver for mining will push speculation high on what will be the final hashrate after drivers goes out of beta + miner optimization over time haha

https://hothardware.com/news/amd-radeon-rx-vega-mining-block-chain-ethereum

The increases are likely due to DAG size fix than any optimizations for Vega: http://www.legitreviews.com/amds-new-mining-block-chain-optimized-driver-tested_197095
 

Genx87

Lifer
Apr 8, 2002
41,095
513
126
Amazing, they released a GPU version of bulldozer. Even through many management changes this type of stuff doesnt change.
 

EXCellR8

Diamond Member
Sep 1, 2010
3,982
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apparently the shortage has been confirmed not due to cryptocurrency--as there are better alternatives and Vega doesn't offer up much difference than currently released cards.

Vega 64 can draw around 275W of power per card, you'd be looking at 2000W PSUs, or five GPUs with a 1500W PSU, or a pair of 1000W PSUs

I'm still blaming miners tho idc
 

fleshconsumed

Diamond Member
Feb 21, 2002
6,485
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I'm not sure what kind of miner would buy Vega to mine. It doesn't mine ETH well, and it also runs hot and loud. To be honest I think with proper undervolting and GPU underclocking V56 can probably match Polaris efficiency. However, with ETH mining profitability rapidly declining it's just not worth getting Vega to mine. Good news for gamers I guess.
 

Elixer

Lifer
May 7, 2002
10,376
762
126
What is this big issue? That AMD is filling the gaps to protect the interposer? Wow this is worse than CNN and Foxnews.

The issue is that AMD is NOT filling the gaps on all chips, and it wasn't level.
Here is a retail card.


here it is with paste:


This is Vega FE retail
 
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CatMerc

Golden Member
Jul 16, 2016
1,114
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Improved Memory Bandwidth efficiency? That's a bit of a stretch. It may have improved a bit, or it could be that Fiji just had more than necessary.

Either way it isn't very good vs the competition. Vega has ~ 480 GB/s of memory bandwidth and it struggles against the GTX 1080 which has about 350 GB/s.

Raven Ridge will be a very nice part with a CPU section that is competitive with Intel, and an APU better than Intels iGP, but that is about it. Don't expect Raven Ridge to challenge event he lowest end NVidia mobile dGPU.

Getting your hopes up on something big happening in the Vega part of the Raven Ridge APU, is just setting up for another Vega disappointment.
Fury X most definitely didn't have more than it needs. It's well known that if you've got golden samples of HBM, you're in for a large boost.
 

.vodka

Golden Member
Dec 5, 2014
1,203
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The issue is that AMD is NOT filling the gaps on all chips.
Here is a retail card.


here it is with paste:


Is it me or is there no underfill in the one with the HBM2 chips sitting lower? That's gotta be an issue for chip longevity when changing heatsinks or cleaning thermal paste off it.... I don't think the microbumps can take much if any mechanical stress vs common solder balls which are much bigger.

What the hell... how did that leave the assembly line?
 

CatMerc

Golden Member
Jul 16, 2016
1,114
1,153
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Really im very curious how VEGA Nano will perform, will it manage to be faster than Fiji ???
Nano should be at or slightly above 56 perfomance.
It got a TGP of 150W while it 56 has a TGP of 165W. Full dies tend to be more efficient at the same power targets, so I don't think the 15W will pose a problem for the Nano against 56.
 

IntelUser2000

Elite Member
Oct 14, 2003
8,686
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Nano should be at or slightly above 56 perfomance.
It got a TGP of 150W while it 56 has a TGP of 165W. Full dies tend to be more efficient at the same power targets, so I don't think the 15W will pose a problem for the Nano against 56.

R9 Nano - 175W TDP
Vega 56 - 210W TDP

I see 35W. We really shouldn't care about TGP since the board power is at 210W. The 35W has to be dissipated as well.

To be honest I think with proper undervolting and GPU underclocking V56 can probably match Polaris efficiency.

But on Ethereum you are paying twice the cost for same performance. With Polaris you can get it down to 120W.

I've heard Vega does well on Monero though.
 

n0x1ous

Platinum Member
Sep 9, 2010
2,572
248
106
Is it me or is there no underfill in the one with the HBM2 chips sitting lower? That's gotta be an issue for chip longevity when changing heatsinks or cleaning thermal paste off it.... I don't think the microbumps can take much if any mechanical stress vs common solder balls which are much bigger.

What the hell... how did that leave the assembly line?
Apparently they are getting packages from 2 different suppliers. One is filling in the gaps and one isnt.
 

nathanddrews

Graphics Cards, CPU Moderator
Aug 9, 2016
965
534
136
www.youtube.com
Hardware Unboxed has a followup video discussing the 30% performance advantage of V56 over 1070 on Dirt 4. Also, why he compared reference V56 to non-FE 1070.

I'm guessing there's going to be a lot more of things like this as the architecture matures and settings are compared.

 

Elixer

Lifer
May 7, 2002
10,376
762
126
OK, the guy that did the pic in my other post said it is a Vega 64, and it looks flush.

Here is the pic
 

Jackie60

Member
Aug 11, 2006
118
46
101
yes, it was a very strange comment.

Also, I have no experience with this, but I've read around here several times and it seems the consensus is that 4K more or less eliminates the need for AA, right? You're basically absorbing a massive performance hit for something like 1% or less in visual improvement?
It's perhaps strange if you haven't experienced it but you would understand when you have. I don't have perfect vision and wear glasses when gaming but jaggies are very apparent at 40" 4K whether you approve of it or not. I was on 980ti SLI, went Titan XP SLI and settled after 6 months on1080ti as Arma 3 was slower in SLI than not and I spend 95% of my gaming there. I like my games to look good and keep thinking about getting another 1080ti as GTA5 especially looked a lot better Titan XP/1080ti SLI so another 1080ti would do the trick but having owned that for 6 months it's really not worth £700/$850 to me for 5 hours better GTA5 per month.
People who buy pathetic 27" 4K screens are missing the wow factor of 4K. I know having owned a 27" 4K Samsung that the resolution is so fine on such a small screen that it might well be fine without AA but at 40 inches it's not. Keep telling me what the 'consensus' is by people using 23"-27" 4K because I'm sure they or you who's never experienced it know best
 
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